Latch for flame spreaders of oil burners



L. S. CHADWICK ET Al.`

.LATCH FOR FLAME ySPIIEADEIRS OF OIL BURNERS 6 Sheets-Sheet l Filed Jan.12, 1922' Dec. l5 1925- L. s. CHADWICK ET AL LATCH FOR FLM SPREADERS OF'OIL BURNERS Filed Jan. 12, i922 e sheets-sheet 2 Dec. 15, 1925- L. s.CHADWICK ET AL LATCH FOR FILAME SPHEADERS OF OIL BURNERS Filed Jan. 12.'1922 e sheets-sheet s Dec. l5l 1925- LATCH FOR FLAME SPREADERS OF OILBURNERS` Filed Jan. l2, 1922 6 SheetsSheet i 1565986 L. s. cHADwlcK ETAx;

L.. S. CHADWICK ET AL LAKTC-- FOR FLAME SPREADERS OF OIL BURNERS FiledJam. '12., 1922 6 Sheetsmg .hlfvllinr F/IIIIIIL Dec. l5 1925' L. s.cHADwlcK ET AL LATCH Fon FLAME SPREADERS 0F @1L BURNERS j 1922 6"sheets-Sheet s 'Filed Jan. .l2

Patented Dec., i5, i325 t ...mmmwmwh Application leei. January .12,1922.Serial No. $28,339.

To all whom may concer/f1, f

' e it known that we, linx: S. Clim)- 'wicn and {El} Mano lisses? ciii lUnited States7 residing et Heights and (2) Cleveland lleiglits.,V incounty ol flnyahoga and State oit @hic have inrented' a certain new and.useful linproveinent in Latclics for Flaine .inpreadeis of Oil Burners,of which the following is full, clear, and exact description, referencebeinghad to the accompanying drawings.

This inrentio'n relates to improvements in that type ot' oil burnerswhereiiti o .flame spreader is supported above the welt, the flamespreader serving .usually in a ondary capacity as a stop to liinit theupward movement of the Wick.

lncertain recent developments in the art the llame spreader has beenemploi/ed as a means 'for setting in operative condition automatic Wickstop mechanism. An eX ample of such an adaptation of the flame spreaderis shown lin Letters Patent No. 1,471,542, issued October i923( In theconstruction therein eshihiterfl, the Haine spreader is-latched to anelen'iei'it of the -hurner in such manner as to he held against verticalmovement with respect thereto. l However, whether the flame spreaderinnctions in its secondar"7 capacity purely as a Wick stop? or as a Wickslop setting` means, it constitutes an abutment for the wiel; and mustbe latched to the 'earner structure. It is essential, on the other hand7that the llame spreader he capable ol rei'i'ioriil 'from the hnrner soas to give access to the top of the wick igor'the purpose oicleai'iingij the latter.

t is the primaij7 aim ol the present in-- `Vention to provide means .for-iatching a llame s'oreatlerto a burner structure which is veryeffective inrestraining the spreader against undue elevation and yetwhich is ez'- eeedingly convenient oi infinipniation to r'e lease thellame spreader. in face the doni inatingrohject ofthe present inventionis to' provide a latch for flame' spreaders., the

ing means actuator Whereol' constitutes the rinnal litt for the spreaderand which is so designed/and :arranged as canse the oser to natorallygrt-isp the act the porpose of littn'ig; the iii-aine l d Vtroni the:burner7 the Very lifting of the spreader bv means of the actinitor'scrvine to nnlatch L C: the Spreader; while the actuator mil assumevplated, perinittirm' the latch to opern normal position when thespreader .is te are loinatically toV again secure the spreader to I theborner structure,

Further objects are to provide a llaine spreader for oil .burners latchwhich is simple. oi coustrnctimi and inexpensive of manufacture, whichis convenient ot' incorporation in the spreader, which does notinterfere in any Viry with the normal operation ofthe spreader 'nor addappreciahly to the cost of the spreader; and to provide latch meansotthe aforesaid character which positive of operation; which adjustsitself to irregularities in size and arrangement of cooperatingI parts;which permits the spreader to he inserted in the burner in any angularposition with respect thereto; and which is Very snbstantial and durableand is pri-ictically immune troni disorder.

The invention is susceptible to numerous modifications vand We have.illustrated se\Y- eral in the drawings acconipanring and forming apartl hereof. These pres no enihodiinents will serve to illustrate theinvention and enable others skilled in the art to understand the natureand principles thereof and to practice thc saine.

ln the drawings, Fig. l is a fragmentary central vertical sectionthrough a burner showing a (laine spreader incorporating one forni ofour improved latch with the parts in locking position; Fig. a horizont lsection on the line 2Q of lilig. l; 3 is a View similar to Fig., Lshowing he 'parts nnlatclied and the spreader as hein;h ,l .troni theburner; Figi fi is a fragmentary vertical section throun'h a hnrnci'equipped with a llame spreader incorporating a inotl'n fied 'forni ofthe latch; Fig: C a section on the. line of Fig: el; Fiets. (i, and areviews cori'csliionding, to lugs. iI and il of a further 5- tnhnlarborner coinniising incorporating :i

.inner and outer wick tubes l and 2, respeetively, between which wich Sis adapted 'to be raised and lowered by wick raising mechanism(not'shown). Veeuuse burners el this character are so Well known tothose acquainted with the art it is deemed "un: necessary to go iurt 1erinte detail in their illustration. is Spanner that .is supported withinand transversely et the inner iriel: tube l a suitable distance belowits u per edge. and said spanner is arranged to supporta flame spreader5. Thereuia nothing particularly unusual about the gene al design andconstruction or the llame snreadel and we shall not into detail in 'thedest lon ot the sante except, as ,to 'those impure@ which enter into ourpresent improveme l.`-escribinui i; .o illustrated in te il. a supportisseeurcd to and rises from the Spanner nt en oi'iposite sides or' itstransverse and near its upger edge are pivoted, you the pivot membersll, pendants l2. 'Fliese pendants. when hanging` free7 repose n aboutthe p( 'gion shown in lli'. i with ieir cuter inunded ptn-tionsoccupying an annular recess l5 tha termed in 'the sleeve ot thespreader. and when the parts are i locked position the pendants areretained ust swinging; inwardly by the presence the lower tapered "nd eta pin l? between them, the pin p; "lp, h li a central aierture ol thetop wa" l the spreader and bein(r `quid/eel witlriknn thinible 19 w riebis carried therrl y. jr head is secured to the upper end oi the pin' l?,and by means ot this the pin may be retracted to withdraw its lower end`from between the pendants l2 and by it the spreader may be lifted fromthe burner. the parts being' shown in such condition in Fig. lt will beobserved from an inspection et this last mentioned View that as thespreader rises, the contracted lower end ot the sleeve 1G earns thependants' l2 inwardly so ato permit said-end to pass them.l-o\vever,"\vith'the pin 17 between 'them the pendants are restrainedagainst inward movement and consequently no upward lorce applied to thespreader by the wich willhave any eleet in lifting it.

To prevent the pendants'l2 from turning over and assuming inoperativeposition stops 22 are turned over within their orbital path from.tl'ieupper edge of the support 1G.

ille have mentioned rhereinbetore that the design of the letfh allowsfor irregularities in the size ar engeinent of the eooperatf ing parts.la tnplanation of thisattention is calledtofthe inclined lower Wall etthe groove l5, and the' gradual taper et the lower end of the pin yNo y,any variation in the positions iii-the pendants@5 due to.

their engaging1 at\ dilterentelevations `the inelmed wall lo? may becompensated o:

is assured at all times. It is obvious that this feature allows forinaccuracies of manu- `facture and assembly. thus facilitatng andcheapening production.

The form of the invention illustrated in Ll and follows quite closelythat above cribed, the essential dill'erence being in the substitution.of rollers 25 tor the pendants l2, the rollers resting` upon a bar 26which is supported by and between the op- T11 .iv i

LOS

posed members 27 of a retainer 2S whichl has a top 29 with turned downportions 30 that serve to retain the rollers 25 against dislodginent;and within the. cental por tion of the top 29 there is an aperture 31through which the pin 32 extends so that its lower end may be insertedbetween the rolle to force them outwardly into the annular groove 33that is formed in the sleeve or the spreader. The pin 32 is slidablfwithin a guide 35 that is carried by the top wall et the spreader7 andat its up'- per end the pin is provided with a lnob 36 by means ofwhiehthe pin may be retracted and the spreader lifted. The lower ends of theside members 27 of the retainer have tongues 37 that are extendedthrough slots in the Spanner 4 and turned laterally therebeyond therebyto secure the retainer to the Spanner.

lt is clear from this description that when the Spanner is lifted 'bythe knob 36, the initial movei'nent results in the withdrawal ot the pinfrom between the rollers 25 allowing them to roll inwardly'along theplate 2G as the restricted lower Iend of the sleeve 3ft passes them.

We Shall next describe the form oi the invention illustrated in Figs. 6,7 and 8.

Secured to and rising centrally t'roin the Spanner 4 is a post- 40 whichhas its upper end reduced at 41, and'the post is bifurcated at its upperend to a depth a suitable distance below the dome shaped top wall 42 ofthe spreader.' The top wall ha's a central aperture 43 that is largeenough to readily pass over the post. 'Pivotallyvsupr ported upon a pin44 within the bifurcated upper end oi?l the post is a latchjplate 45involving a kkeeper flhihat is normally projected out over thetop wall42 of the spreader adiacentthe aperture'l by the weighted end 47 of thelatch plate, such end tending to swing the latch plete in a, dreciso IIl l tion to accomplish this result, as-Wilihe readil)Y understood Iuponan inspection of Fig. 6. A nose 510 exten-de laterally from the upperend of the latch plate on the eide of the post opposite that Whereon thekeeper lo is located5 and this noee is adapted to he engaged hy a collarl that surrounds the reduced portion 4l of the post #l0 when the collaris lifted. The collar 5l is inovahly connect-ed to the spreader througha inelnlier said member coneisting of a cylindrical portion 'frein whichtongues extend; upwardly through slots in the collar 5l and are' turnedofc-r thereahove to hold the parte together, the member havinpaplurality of legs 54 which are slidable Withinslots 55 of the spreaderwall 12, the legs terminating at their lower ends in laterally turnedtongues 56 which prevent Withdrawal of they legs from the slots 55.

It is evident that when the parts are in normal position, as illustratedin Fig. G, the spreader is eilectually held against upward movement withrespect to the eti), Consequefitly, the wick, when it is elevated andengages the periphery7 of the will have no effect in lifting; thesgwearler independently of the post. When it ie desired to remove thespreader, ae for the pur pose` of cleaning the Wick7 the user grasiasthe collar 5l between the thumb and linger and lifts the sameVThei'oitial upward movement`oi the collar in advance of theepm-:adercauses theeo'llar to engage the nose 50 and Swing itinwardly'to retract the keeper 4:6. Undue movement of the latch plate inthis direction is prevented by a stop 57 that ie arranged to engage theadjacent side or the post 410. When the collar has heen elevri-tedeulhciently to accomplish the rete-ac tion oil? the keeper 46, the toneies of the nien'i'oer o2 will have engaged the tcp n ci' the elffreederso that further elet/et ot the collar will. carry with it the enspii'eadci: lin replacing' the aperture 4:8 Slips over the pot il and asthe collar 5l engages the inclis'red upper odge ol the nose 50, it earnsthe nose'in- Wardl'y to permit the collar to pass, the Weight 1lii1nniediatelyv tl'ereatter return'- ing the parte to normal position toproj; ct

the keeper 4G over the top Wall et the spreader.

lt will he readily eeen troni an inspection.

of Fig'. 6 that7 While the weighted end is -ot the latch plate tends tohold the plate in locking' position, vit is positively held in suchcondition against accidental dislodginent ac from jarringr or tilting bythe Weight of the follar 5l, said collar, as will be noted, tit tingdown over'the adjacent side edges o the plate and holding it in acentral positionf In the vform of the invention 'illustrated in Figs. 9and le, a pest, tl ie supported hy 4and centrally ot' the. onrnerstructure and it terminates at its upper end in head 6l. .hav ingr aninverted ilfiust.o-conical portion 62. A ured to :intl deixiending fromthe top wall (55 ot tl'ie spreoifler 5 :ire plates (3C having inclinedportions e7 ti 7e opposed to the Vl'riisoronivcal portion 6.; of the'post Locking elemente in the torni ci halle (i8 are arranged to nbetween the inclined port-ione. of: t. e plates and the truste-conicalportion ol: the post so as to restrain the spreader against he n liftedwith rc' :.ect to the "post5 heinjr obvious that any lift imposed uponthe spreader would he 'opposed hy 'the irnetoconical head thriigjh the.ii'iterentien or the balle 68 and platee (i6. 2K3 is an actuator 'thatis in the forni of frohe, the branches Tl, Where of ext nd tl'xreupgh inthe top 'Wall ofthe. spreader and depend alongside the plates 6G Wherethey are provided with slots T3 through which the halls 68 project 'forcf'io-peration Wih the, head 6L These elote are inieirhat narrower thanthe balls in as retain if e halls from I from the plates; Go when thesepa. l is from the hnrner. .in thie :forni et *.'entionrto remove thespit-ander it ie onl' neceeeary to greep the ripper end or" th'cti-rater Y() which will lift the halisii and allow them to v reason otthe upward divergence o' the plates :je 'that they #will 'over the lallowtthe reader lhen'the aprender rs retiirned te in trie tunner, thehalls titl drop liel 'tion read (il. to normal arieh mote in J hereheburner,

pair cii i .e pi otally con-- neeted t on tooth sides of the freine 5?ieeted t; pa n inwardly d nose incline upwardly and outwardlyslight tothe Vertical for compiere tively'ehort distance vand thereahove ieclined ontwardly at a erahly greater angle for a, pnrpoce which shallpreeently appear. troni the he "y portion of each of the platee ie. the'direction of and e euitehle d helen' nose to he readily r EEO i YLeeeeee a linger 90. The nose and finger extend,

through slots in the adjacent side member' of the 'trarne S0. in angularprojeetion on the outer edge of each of the plates 85, cone stituteswhatwe may terni a keeper 9i.; The spreader tlnit is designed forcooperation with the latch mechanism just described involves a sleevenieniher n having an annular recess ordepression 95 that is shown asV-shaped in Cross section, for the reception oit' the keepers 9i of thelatch plates Guided within n central eperture 9T of the top wall Q8 ofthe'snreader is an actuation; pin f) havingy a head 100 et itsL upperend. the pin heineT further guided through an aperture Jformed in theinner end ot :i bell shaped inemleer lOl that is applied to theunderneath side or" the top wall 98. A stop 102 on the nin 99 retrainsthe pin troni undue upward movement. by Contact with the member lOl. Thelower end of ,.he pin 99 is tapered to correspoinl suhetantialry to theangle o?. the inner ends ot the noses Si". illhrn the spreader is inplace., ,the ianered end of' the pin rests between. the noses Si'. andholds the latch plates 85 out wardlyv so that the keepers 9i'. occupythe groove or reces," 36. `i'roin, the burner by ineens et the pin 39,the initial movement of the pin, independently ot the spreader,withdraws the tapered end ot the pin from between the noses 8i so thatwhen the spreade is raised the latch. plates 85 are treo toswing-inwardly 'to withdrr if their keepers 9i troni the groove orreeess 96. :fn placing the spreeder within the burner, it is loweredover the 'latch n'iechanisin, the lower end the sleeve 95 engaging' theoutwardly diverging upper ends of the latch plates and forcing' thereinwardlyv (it they are not already in inner position), the spreadercont-i'nuingt to desrend until it rests upon the 'spanner with the`groove or recess 36 opposite the keepers ill. Then the pin 99 islowered to its nornuil position its tapered end, engaging hetween thenoses Si oi' the latch plates, swings the lateli plates outwardly to thekeepers 9i within the groove or recess 9G, in which poeition the partsare illustrated in Figi. 1l.

V[n the form-oil the invention illust-rated in Fig. l2, a rod 105 risesreutruilj-,f i'roni the Spanner it and is fixed with respect thereto.Guided for vertical movement within an aperture of the top wall G of thespreader is an actuator 10T that is provided with arms rv' `lllbwrl'iirheinbree the inwurdly directed Go\\ends ot looking levers '1(5) in suchmanner as torause Said levers to be swung outwardly when the actuator iselevated. 'lhe lockingv levrrs have their outer ends pivotelly oonnec edat 1l() to the element. lll of the G spreader. lflien the 'parts :ire innormal En lifting; the spreader eonditiongtheinner ends of the lookinglev vere l0@ engage beneath the conical heed 112. of the poet andrestrain, by reason ot their engagement with said head, the spreadl eragainst 'upward movement independently oi the post. However, when it isdesired 'to remove the spreader from the burner, it is lifted by meansof tl e actuator 107 and the initial movement of the actuator swings theupper ends of 'the locking levers 109` out wardiy beyond the heed 112 sothat the spreader may be lifted by means ot the am iiuitor 'rec from theburner. En replacing the spreeder the locking levers ltlf) are heldexpanded as long es the weight of the spreader is supported through theactuator sq that the locking levers ere notJ free to resune normalposition until after the er is in linal position and the locking; leversare below the piene of the upper end of the heed M2. i,

A. somewhat similar form of the invention "Lo that just described isfound in. where locking,l levers ere show i u ed at li to en eleinent,ll" et tir the le\'e wh' through s. d 'top f f the spreader for eonieelhead l2() of the post 101,

l ends ot the looking lever l eroes etici other and are provided withfinger i h ed by ineens ott tire 122. The spreader i levers, and whenthe thumb end the into the position .sl ie Fig. lil, thus w" the heepers119 'l'roni beneath the heed 'i90 the spreeder to be lifted free i. l,112i. lf he inner ends of the keepers so Yiorn'ied that they will rideover the heed i re grasped 7nett-reen n they ere brought .-.n dotteflines seA liZO should thesprezufler he returned to its place in theburner without having; hold the levers in Fig'. lli we here Shown a formof' the invention wherein the top wall et tiie sgre er 5 plates whichare hingedly conne a sleere lQG of the spreader es by firing tongues ofsaid sleeve projeoted through slots iii the plates 125 and turnedoutwardly'therebeyond. llben the spreader is in place, the

- upper edge portions 127 of the platos 125 engage beneath the head 128of the poet- LQS? and lock the spreader against beingl elevatedindependently of the post. if" hen itis desired to remore the spreader,the lifting heir dles 1.230, winch extend upwardly ronrtlie plates andcross each other, are drawn together between the thumb and finger endthis swings the plates 125 away from each other and reinores their upperedges "reni beneath the head 128, permitting tl1esnreedmade `up ofopposed eer-nieonierd er lo be Iiited free from the post 129; "enti whenthe spreader is returned to itsrpfmition in the burner and the handlesere Teieiiseif; the piees 125 drop to leaking pesi ifa-ion beneath theiiea lQS. It will be 0bved that in diie l'nediication -he Spreader peise and fhe izieiiiig" means have constitu ei 's in @mamen in the styleof die semi- @el 'eel l in Mie form ef the invention iiustifated inFigs. 15 endl@ a. supporting member 140 eeifiiie by an emmlus; 141 (ftheequivaiem erf the Spanner in the fermer modifications) iiieii fitsWithin the upper end of the inner "ich mbe 1. Pivotlly supportedth'oug'ii ins i412 :iem the membe'i' 140 are bitching or tumblers 141-3that are limited in ei 'pivnze movement and maintained in pmpei relationto the supporting member 34.@ by hooks; 144 ifhef; are engaged throughflee epeiimgs M5 n'the tumblers.

iiie Heine spreader 5 that is designed fm;

ivih this form of iatching means has an siii i shoulder 148 over andinto engage ment with which the keeper portions 149 of he kumbiers 143`are adapted to be movefi by e. @in i5() when its farpered imvei emi ieinserted between he'tumbiers. The pin 15G is guided Within e hole in thetop will of the anni t'nougii e member 152 depend- ;timii seid wal.7 itsupward movement 'with respect to the spreader being: iimied by me enigzigeiaent, of e eheuider 1F55 on the pin W'ii the member 152. The pinis equipped with iiezii 1541 by means of which .it may mashed whenlifting the spreader, the pin eww/iisg ae e menuei iifter for thespreader sie Weii e mi aetizefor fe? the In'chmg means.

i u if ia'eii .is verf; efi'ieient and nbmeiive iii iis iio'idingqualit-ies as Wiien .the keeper portions eiiied iii engagement fief M80f the. epreedei 'xi-,ion he pin 150. i kerzeil''- ex-'aiiizege olii ourinven- @ver :nii be Spreader kite-nes with We ai f, niim arises from thefact iii miie@ eti-eil Mie spreader may be if; tee e053 of 'ie eyin'icalbmne '0i "ih respect thereto, er :di circumstances, mi?? teceiiifenieiee in i 'ibed om invention, what e :is:

i eembinetien with a. immer 0f the meter set foi-th, al. faime spreaderadapted 2;0 be supported in operative reiaton therein, mesme Sterlocking die. iame spreader to an eiement oi? the bumei rigidly againstvertieiii. movement with respect ti'iereto7 and fur their means movabiycarried by the ame eeifeefif :im: rendering the locking means iiiefe Si.In eembinetion wieh a, 'buiner of the @hammer eef; forth, e flameepreaderf :Adapted -imding ieieiiimi in iiftei im: iifzf. epi cer whichwhen Used sucia in ifei'iucithe kickingmeaiis inefiecive. v

.in eombiiwon Wiii a burner of the 'chemisier im Ji, 1 ieme spreaderadeptec te he supported in epeiziive i'eiutien hereiie, means acting by,-fiaviy in iigidiy lock the iiame spreads ie :in eiemen, nf the immer:igaiiis mi 1i 'i me emeiie Wiili iespeet iaherem. :limi 31u23: *fori'eiifieing lie ,okng means i'iieiec'mve. i

In cembinnigien wiii'i fi bur-iler of the eheiaeei" Se.; wth si Heimespreader adapted be supported i 'itive reiutien theretQ, membn mem-blycarried by im eemen', of

part of 'the recede@ :md iiiiea'ns carried by lo be' suppnriei iiioperative relation hei'em ineens-5w iin-hing; the ame spread-ie? to aliAelement o" the burner so that ii'ie ame .Qpi'emiei inmpfibie 025:'eppzeei-eiiie vertice-. mm'emen' independently of Seid eemeit, :md niiftei' for the @prem-"ier that is capable oi? a, limited nicmwne'iii'.ndepencentiy ei he spr-(unice. die ii'fiey during such movemen, seiyinp;i0 ren Jfizirii ineieeive 6. In c wiii blume? of the charm-tei' eet"inne Spiezfiel adepte@ to be supp@ e ,i in u dij-ive relation heree, u,latch Carried .by au, eiimefief iii burner for ini-king the Humemezf'iei against appeeiiibie' vmt? mme; infiependeniiy G15 seid eiemei',:imi rm i '02: enliee by the, .epiiivwiei :imi "having iimiief. movementinde pendeniy i310' if sind by means ef which he spi-ouder i iii'ed 'immthe berne?, the movemeni ci" 'i aeufie: independently of the spread@i'ef-suiingg 'from the ii'fiig Of the spreader eri-ing if@ feeder eineehai'ncez' Seifert' e to be suppoi'i'ed in Said spreziei' i* @erp-:miing with pace 0,;

the burner and arranged to"` interlock parts of `the spreaderiinsuchjmanner as to.

hold the spreader against appreciable vertical movement with respect tosaid element, and means carried by the spreader for retaining saidmembers in holdingrelation tosaid parts, said mean'spnstituting a lifterfor the spreader and serving to release said members upon the lifting ofthe spreader by 4Said means.

9. In combinatie/n with a'bnrner of the character set forth, a llamespreader adapted to be supported in operative relation thereto, memberscarried by an element of the burner and adapted to expandinto holdingengagement with the spreader, and an actuator carried by the spreaderand serving as a lifter for the spreader and when utilized as such actsto release the aforesaid members so that they may he contracted.

l0. ln combination with a. burner of the character set forth, a damespreader adapted. to be supported in operative relation thereto, memberscarried by an element of the burner I'and adapted to be expanded intoholding engac'cment with the spreader, and an actuator .carried by l'hespreader which serves nor mally to expand said members, said actuatorconstituting; a lifter for the spreader and when utilized as suchacting' to release the aforesaid members so that they may be contracted.

1l. ln combination with a burner of the character set forth, a flamespreader adapted to be supported in operative relation thereto, pendantspivotally suspended from an element of the burner and having parteadapted to repose within a recess of the spreader, and a member slidablycarried by the spreader and arranged to project between said pendants toretain them outwardly with their aforesaid parts within the recess of'the spreader, said member serving' as a lifter or the spreader andretractable from between the pendants when the spreader is liftedthereby.

l2. In combination with a burner of the character set forth, :L .fiamespreader adapted. to be inserted Within the upper end of the burner andcon'iprising a sleeve having an annular recess, the burner having anelement which extends into said sleeve when the spreader is in placewithin the burner, pendants piroially supported by the aforesaid elementand having parts arranged to occupy the annular recess of the spreader,and a `member slidable within the spreader and having a part adapted torepose between the pendants for holding them outwardly with theiraforesaid parts' Within the recess of the spreader sleeve, the memberserving as a lifter for the spreader and retractable from between thependants when the spreader is lifted -thereby.

13. in combination with a burner of the atenas@ 5 I spreader.

3.4. l'n combination with a burner of the character set forth, a iamespreader adapted to be supported .in operative relation thereto, andmeans for locking the flame spreader to an element of the burner rigidlyagainst vern ticai movement with respect thereto, said locking meansbeing effective at any point Within e given range of movement thereby tocompensate for possible variations'in the relative positions of thelocking means and element.

,ln combination with a'bnrner of the iracter forth, a. iii-,me greaderadapted to be supported in operative relation thereto, expansihlelocking' moans for securing the spreader to an. element of the burner,said means comprising' members ai ange-.d to separated. and' a partmovably carried by the spreader for insertion between said membersthereby to separate or expand them.

16. In combination, a burner structure, flame spreader, expandingmembers for lock" ing the spreader to 'the burner structure, and anelement i for holding erpai'ided and in locking; condition. M

1'?. eorlei ch to be inserte burner in ar Y or'e spect thereto, f alcuring;1 the spreader 'to bein;1 effective when tl orientated positionborner.

l: combination, two major parts, one consisting' of a bin-nerstructure,- and the `other consisting of ,Llame spreader, means carriedby one of said nuits, and the other havingI a circmnferential part.Wherewith said means (engages to lock the spreader to the burnerstructure in various orientated positions with respect thereto.

19..,'n locking means for securing' a flame spreader to a burner, thecombination with the name spreader and burner. of relatively inclinedparts carried by one of the aforeed position with nspreader is any withrespect 'to the said elements, and a member carried by thel Within theupper end of the A sertibie between the members ported in operativerelation to the burner, one of sniil units having an abutmentpoftiolrand lthe othoiI ulntching clonwnt shillal-Lle laterally withrespect lo the axis of thi,l hurnel imo holding relation tothealnitniont pjortion, :inil inmm for positively maintain ing the latohingelement in such holding rclution to Said :ilnitxnent poi-tion.

2l. ln Vcon'ibinuuon with a burner of the character set forth, n llamesp1-@ader adapted to be, supported in operative relton thereto,

our signatures.

expansible locking means for securing the spreader to :1n element. ofthe burner, said intnnr` con'iprising mc'inbcifs arranged to be. Spreadapart, zinfl a "part n'iovably cauriuil by the spreader and by lnenns ofwhich said members maybe spread apart or expanded.

ln testimony whereof, we hereunto atlix LEE s. oHADWIoK. MARC RESEK.

